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Searching: audio signal





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Patent # Description
US-1,004,3535 Method and device for spectral expansion for an audio signal
A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a "mapping" (or "prediction") matrix based on...
US-1,004,3534 Method and device for spectral expansion for an audio signal
A method and device for automatically increasing the spectral bandwidth of an audio signal including generating a "mapping" (or "prediction") matrix based on...
US-1,004,3530 Method and audio noise suppressor using nonlinear gain smoothing for reduced musical artifacts
A noise suppressor has a band extractor to separate signal by frequency band; and per-band units for each of band including noise estimator and SNR computation...
US-1,004,3529 Audio quality improvement in multimedia systems
Methods and systems are disclosed for echo suppression of an input audio signal. A multimedia system and a remote control unit are configured to adaptively and...
US-1,004,3528 Audio encoder and decoder
The present document relates an audio encoding and decoding system (referred to as an audio codec system). In particular, the present document relates to a...
US-1,004,3527 Human auditory system modeling with masking energy adaptation
A method for generating a psychoacoustic model from an audio signal transforms a block of samples of an audio signal into a frequency spectrum comprising...
US-1,004,3526 Harmonic transposition in an audio coding method and system
The present invention relates to transposing signals in time and/or frequency and in particular to coding of audio signals. More particular, the present...
US-1,004,3525 Frequency band extension in an audio signal decoder
A method is provided for extending the frequency band of an audio signal during a decoding or improvement process. The method includes obtaining the decoded...
US-1,004,3524 Interactive data communication with acoustic signal communication
A composite signal having frequencies within a sonic first frequency bandwidth may be received from a communication media on a receiver. The composite signal...
US-1,004,3519 Generation of text from an audio speech signal
In one general aspect, a computer-implemented method for text generation based on an audio speech signal can include receiving the audio speech signal,...
US-1,004,3515 Voice activation system
A voice activation system is described including a first voice activity detector for receiving a first signal from a microphone; a second voice activity...
US-1,004,3513 Systems and methods of interpreting speech data
Method and systems are provided for interpreting speech data. A method and system for recognizing speech involving a filter module to generate a set of...
US-1,004,3509 Reverberator and method for reverberating an audio signal
A reverberator for reverberating an audio signal includes a feedback delay loop processor for delaying at least two different frequency subband signals...
US-1,004,3505 Wireless device and method in the wireless device
A transmitter comprises an analog-to-digital converter, an audio signal compressor, a framer, a scrambler, a modulator, and a transmitting unit. The...
US-1,004,3501 Signal processing device
A signal processing device includes: connecting terminals each of which is connectable to respective ones of a plurality of other signal processing devices that...
US-1,004,2803 Operating method for card reader
An operating method for a card reader, comprising: powering on a card reader, and setting an operating mode according to the type of a device connected thereto;...
US-1,004,2802 Inter-device digital audio
A method for reconfiguring a bus device from a first configuration into a second configuration, wherein the second configuration is not visible to, and is not...
US-1,004,2796 Digital accessory interface calibration
An audio system comprises a master device; a slave device; and a wired connection, suitable for connecting the master device and the slave device, and having at...
US-1,003,9080 Situationally-aware alerts
An electronic device that provides situationally-aware alerts determines to provide an alert output (such as haptic, audio, visual, and so on) via an output...
US-1,003,8963 Speaker device and audio signal processing method
A speaker apparatus includes an input portion to which audio signals of a plurality of channels are input, a plurality of speakers, a directivity controlling...
US-1,003,8962 System and method for testing and certification of media devices for use within a connected media environment
In accordance with an embodiment, described herein is a system and method for testing and certification of media devices for use within a connected media...
US-1,003,8957 Audio mixing based upon playing device location
A method including determining location of at least one second device relative to a first device, where at least two of the devices are configured to play audio...
US-1,003,8879 Bi-directional virtual reality system
The present disclosure relates to a bi-directional VR (virtual reality) system and, more particularly, to a bi-directional VR system using a user image and a...
US-1,003,8795 Robust acoustic echo cancellation for loosely paired devices based on semi-blind multichannel demixing
A method for echo cancellation in multichannel audio signals includes receiving a plurality of time-domain signals, including multichannel audio signals and at...
US-1,003,8510 Mixing digital audio
A method of mixing digital audio uses a plurality of mixing buses. Each mixing bus receives at least one input digital audio signal via a respective input. A...
US-1,003,8411 Method and apparatus for distortion reduction in a class D amplifier
A Class D amplifier is described herein that includes an outer loop, an inner loop, and a notch filter. The notch filter can be located between an output of the...
US-1,003,7781 Interface systems for portable digital media storage and playback devices
A docking assembly serves as an interface between (1) a portable digital media storage and playback (PDMSP) device, and (2) a media reproduction system. A...
US-1,003,7765 Apparatus and method of reducing noise and audio playing apparatus with non-magnet speaker
An audio apparatus is provided. The audio apparatus includes an input configured to receive an audio signal containing noise; a period estimation unit...
US-1,003,7762 Method and device for decoding an audio soundfield representation
Soundfield signals such as e.g. Ambisonics carry a representation of a desired sound field. The Ambisonics format is based on spherical harmonic decomposition...
US-1,003,7753 Multi-sensor signal optimization for speech communication
Systems, methods, and apparatus for facilitating multi-sensor signal optimization for speech communication are presented herein. A sensor component including...
US-1,003,7712 Vision-assist devices and methods of detecting a classification of an object
Vision-assist devices and methods are disclosed. In one embodiment, a vision-assist device includes an image sensor for generating image data corresponding to a...
US-1,003,7677 Speech therapeutic devices and methods
Disclosed herein are speech therapeutic devices and methods. In one aspect, the speech therapeutic device includes audio input circuitry, signal processing...
US-1,003,7081 Systems and methods for haptic fiddling
Systems and methods for haptic fiddling are disclosed. In one embodiment, a sensor signal indicating an interaction with an electronic device is received by the...
US-1,003,5437 Collapsible stroller assembly
A collapsible stroller assembly for combining a car seat and a stroller includes a car seat that has a chair portion and a backrest portion. The car seat is...
US-1,003,4613 Headphones measuring heart-rate
The invention relates to headphones and a method for listening to music or some other audio signal, which headphones comprise at least one sound source such as...
US-1,003,4356 Smart lighting device, and smart lighting control system and method
The present disclosure provides a smart lighting device, and a smart lighting control system and method. The smart lighting device includes a wireless...
US-1,003,4159 Accommodating interference between wireless streaming and control protocols
Disclosed wireless systems, devices, and methods accommodate interference between different communication protocols. One illustrative wireless communications...
US-1,003,4146 Control system, control device, and mobile device for vehicle
A control system a control device, and a mobile device for controlling a vehicle are provided. The control device is adapted to be disposed on a vehicle. The...
US-1,003,4145 Localizing mobile device in vehicle
Method and system for localizing a mobile device in a vehicle is provided. The method may include: triggering an audio system mounted on a vehicle, which audio...
US-1,003,4115 Manipulation of playback device response using signal processing
An example playback device receives left and right channels of audio content and generates a center channel of the audio content by combining at least a portion...
US-1,003,4113 Immersive audio rendering system
A depth processing system can employ stereo speakers to achieve immersive effects. The depth processing system can advantageously manipulate phase and/or...
US-1,003,4107 Hearing aid
A hearing aid includes a shell for accommodation of a signal processor for processing an audio signal into a processed audio signal, and a receiver that is...
US-1,003,4098 Generation of audio and ultrasonic signals and measuring ultrasonic response in dual-mode MEMS speaker
A MEMS speaker that includes a control unit and multiple MEMS elements that include a membrane positioned in a first plane, a blind that is positioned in a...
US-1,003,4092 Spatial headphone transparency
Digital audio signal processing techniques used to provide an acoustic transparency function in a pair of headphones. A number of transparency filters can be...
US-1,003,4091 Multi-channel audio vibratory entertainment system
An entertainment system is provided, the system comprising a portable media device configured to simultaneously produce an audible output signal and a plurality...
US-1,003,4090 Audio control device
A first fixed filter extracts high-frequency and low-frequency sound signals outside the audible band, and a level integrator integrates levels of the sound...
US-1,003,4087 Audio signal processing for listening devices
A method of mitigating effects of alternating or changing pneumatic pressures within a substantially sealed ear canal includes providing an indication of ear...
US-1,003,4085 Class-D amplifier, audio processing apparatus and method of driving class-D amplifier
A class-D amplifier includes an error amplification circuit, a duty signal generator, a level selection circuit, a driver and control block and an output stage....
US-1,003,3915 Camera peripheral device for supplemental audio capture and remote control of camera
A peripheral device (e.g., a small wearable device) may operate in conjunction with a camera to enable in-the-moment capture and control. The peripheral device...
US-1,003,3864 Dynamically switching communications to text interactions
Methods for dynamically switching communications to text interactions are provided. In one example, a method includes the steps of receiving a phone call and...
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